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From "Siying Dong (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-2385) Local Mode can be more aggressive if LIMIT optimization is on
Date Wed, 17 Aug 2011 19:41:27 GMT

     [ https://issues.apache.org/jira/browse/HIVE-2385?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Siying Dong updated HIVE-2385:
------------------------------

    Status: Patch Available  (was: Open)

> Local Mode can be more aggressive if LIMIT optimization is on
> -------------------------------------------------------------
>
>                 Key: HIVE-2385
>                 URL: https://issues.apache.org/jira/browse/HIVE-2385
>             Project: Hive
>          Issue Type: Improvement
>            Reporter: Siying Dong
>            Priority: Minor
>         Attachments: HIVE-2385.1.patch
>
>
> Local mode now depends on total input data, but for LIMIT queries with no filtering,
the data actually scanned can be much less and it's relatively predictable. We can place local
mode more aggressively.

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